There are a number of methods which can be used to estimate future staffing requirements and determine what actions need to be taken when forecasts suggest that organisations will have a shortage or surplus of employees. conduct appropriate research to identify and explain three. (300–400 words)

Ibelieve the answer is d

Do not include the unexpected results

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.